Method for winding and assembling magnetic cores



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1 NmJ t \r N W L I RH mm mmm 0 TL m 2: v. m m i Wm S IA 9 H l l 2 w N d e o m i "mi BY ATTORNEY H. P. LUHN May 26, 1964 METHOD FOR WINDING AND ASSEMBLING MAGNETIC CORES 19 Sheets-Sheet 3 Filed Nov.

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METHOD FOR WINDING AND ASSEMBLING MAGNETIC CORES Filed Nov. 21, 1955 19 Sheets-Sheet 4 I 7 148 WI May 26, 1964 H. P. LUHN 3,134,163

METHOD FOR WINDING AND ASSEMBLING MAGNETIC CORES Filed Nov. 21, 1955 19 Sheets-Sheet 5 FIG. IO FIG. 11

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INVENTOR HANS P LUHN BY ATTORNEY H. P. LUHN 3,134,163

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METHOD FOR WINDING AND ASSEMBLING MAGNETIC CORES Filed NOV. 21, 1955 19 Sheets-Sheet ll INVENTOR HANS P. LUHN ATTORNEY FIG. 31

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T T T T T T r T T T T\ 4 Z H. P. LUHN May 26, 1964 METHOD FOR WINDING AND ASSEMBLING MAGNETIC CORES Filed NOV. 21, 1955 19 Sheets-Sheet 19 mmdl United States Patent 3,134,163 METHOD FOR WENDENG AND ASSEMBLING MAGNETEC CURES Hans P. Lulin, Armonlr, N.Y., assignor to International Business Machines Corporation, New York, N.Y., a corporation of New York Filed Nov. '21, 1955, Ser. No. 548,131 11 Claims. (Cl. 29-155.5)

This invention relates to methods and apparatus for winding magnetic core arrays and more particularly to automation and mass production of such core arrays.

Magnetic core arrays are becoming increasingly important, for example, in the field of high speed computers. Heretofore, core arrays have been produced by long and tedious hand labor in which the various windings are threaded manually through the very small, individual magnetic cores. That method is extremely tedious, extremely slow, and subject to errors. A single error may nullify several days or even weeks of work.

It is the principal object of this invention to provide an improved method of assembling magnetic core arrays.

Another object of this invention is to provide a method of winding an entire row or column of a core array in a single step.

A further object of this invention is to provide a novel method of inserting windings in a core array whereby the inductive effects of one winding cancel the inductive effects of an adjacent winding.

Still another object of the invention is to provide a method of manipulating groups of cores comprising a single array whereby non-corresponding rows of adjacent groups are aligned for insertion of windings in a pattern whereby the outputs due to the half selection of nonselected cores are self-cancelling.

Yet another object of the invention is to provide a method of manipulating groups of cores comprising a Single array whereby one group of cores may be moved into a different plane relative to an adjacent group whereby the windings may be inserted in one group without the physical interference of an adjacent group.

Another object of the invention is to provide a novel support member for a row of magnetic cores.

Yet another object of the invention is to provide a novel support member for a row of magnetic cores adapted for receiving end terminals for connecting certain ones of the core windings, the terminals having configurations and positioning adapted to facilitate the interconnection of adjacent rows of cores, for example, by dip soldering.

A still further object of the invention is to provide a mechanism for automatically inserting a row of cores and certain ones of required windings in a special support member.

Another object of the invention is to provide means for assembling core carrying strips, forming a core array, into a rigid, self-supporting unit.

Other objects of the invention will be pointed out in the following description and claims and illustrated in the accompanying drawings, which disclose, by way of example, the principle of the invention and the best mode, which has been contemplated, of applying that principle.

In the drawings:

FIG. 1 is a plan view of the device for lacing cores on core supporting strips or combs.

FIG. 2 is a front elevation of the device.

FIG. 3 is a right end elevation taken along the line 3-3 in FIG. 1.

FIG. 4 is a left end elevation taken along the line 44 in FIG. 1.

FIG. 5 is a sectional view taken approximately along the line 5-5 in FIG. 1.

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FIG. 6 is a partial view showing an actuated position of part of the mechanism of FIG. 5.

FIG. 7 is a partial view of FIG. 6 with parts rotated FIG. 7a is a partial view of FIG. 6 with parts rotated to an intermediate position.

FIGS. 8 and 9 are sectional views of a. core feeding mechanism.

FIGS. 10-13 show successive positions of elements during machine operation.

FIG. 14 is a view of the core support member and terminals.

FIG. 15 is a sectional view taken along lines 1515 in FIG. 14.

FIG. 16 is an enlarged top view taken along the lines 1616 in FIG. 14.

FIG. 17 is a side view taken along lines 1717 in FIG. 16.

FIG. 18 is a view of a comb member and terminals with three windings per core.

FIG. 19 is a view taken along lines 19-19 of FIG. 18.

FIG. 19a is a sectional view taken along the lines 19::- 19a in FIG. 18.

FIG. 20 is a schematic representation of a conventional core memory.

FIGS. 21-29 show successive steps in assembling a particular core memory.

FIG. 30 shows a terminal block.

FIG. 31 shows jumper connections for the memory shown in FIGS. 21-29.

FIGS. 32a and 32b show the completed memory of FIGS. 21-29.

FIGS. 33 and 34 show another COIl'lbuIl'lCI'IlbCl complete with windings, cores and terminals.

FIGS. 35-38 show the successive steps in assembling another core memory.

FIGS. 39 and 40 show the completed memory of FIGS. 35-38.

FIGS. 41-43 show circular core mountings.

FIGS. 44 and 45 show a circular terminal plate.

FIGS. 46-48 show the steps of inserting various windings in the cylinder core array.

FIG. 49 illustrates schematically the arrangement of core windings in a cylindrical array.

FIG. 50 shows a partial core strip for still another core memory.

FIG. 51 shows the relationship of the strips of FIG. 51 when arranged as a particular core memory.

FIG. 52 shows the complete memory of FIGS. 50 and 51. t

The apparatus of the present invention is set forth and claimed in my copending application Serial No. 363,658, filed February 25, 1964.

The object of the mechanism shown in FIGURES 1 to 9 is to automatically mount cores and one or more core windings on a core strip or comb such as is shown in FIGS. 14 through 17. The comb may be moulded from any suitable material, for example, one of the styrenes. The comb is generally designated 2 and comprises a body portion 4 and tongue portion 6 at either end of the body portion for affixing terminal units 8 and 10 having variable numbers of terminals 11 and 12 according to the use intended. The comb has core receiving pockets 13 arranged along each edge of the body portion 4, and the pockets open alternately on opposite sides of the comb and are separated by teeth 14. Grooves 15 are formed along the bases of the teeth 14. Holes 16 are provided for inserting rods (not shown) for assembling groups of combs and are surrounded by elevated circular rings 17 for spacing adjacent combs. Similar holes 16a are provided in the terminal units 8 and 10.

Referring to FIG. 1, a frame comprises a bottom plate 

1. A METHOD OF MOUNTING AT LEAST ONE CONDUCTIVE WIRE, AND A PLURALITY OF MAGNETIC CORES THREADED ON SAID WIRE, UPON A COMB MEMBER HAVING A PLURALITY OF CORE SEATS IN AN ALIGNED ROW AND SEPARATED BY COMB TEETH, COMPRISING THE STEPS OF THREADING SAID PLURALITY OF CORES ON SAID WIRE, ALIGNING A CORE SEAT AXIALLY WITH SAID WIRE, SEATING A CORE IN SAID ALIGNED CORE SEAT, ADVANCING SAID COMB MEMBER TO ALIGN A NEXT ADJACENT CORE SEAT WITH SAID WIRE, ROTATING SAID COMB MEMBER ONE-HALF REVOLUTIONS IN ALTERNATE DIRECTIONS ABOUT AN AXIS TRANSVERSE TO THE ALIGNED CORE CENTERS WHEN SAID CORES ARE SEATED IN SAID ALIGNED CORE SEATS TO WIND SAID WIRE ABOUT ONE OF SAID COMB TEETH BETWEEN SAID ADJACENT SEATS AND REPEATING THE FOREGOING SEQUENCE OF STEPS TO SEAT CORES IN SUCCESSIVE ONES OF SAID CORE SEATS AND BIND SAID CORES THEREIN BY SAID WIRE WOUND ABOUT SAID TEETH. 